
def ccc(f):
    print(" ")
    def a(*a,**b):
        print("开始调用这个函数")
        f(*a,**b)
        print("结束调用这个函数")
    return a

if __name__ == '__main__':
    from my2 import mysum, mychu, mycheng, myjian
    mysum(2,3)
